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# Test UDP recv and recvfrom with MSG_PEEK
import random
import socket
import time
# Server
def instance0():
PORT = random.randrange(10000, 50000)
multitest.globals(IP=multitest.get_network_ip(), PORT=PORT)
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
multitest.next()
peek_bytes, peek_addr = s.recvfrom(8, socket.MSG_PEEK)
print(peek_bytes)
real_bytes, real_addr = s.recvfrom(8)
print(real_bytes)
print(peek_addr == real_addr) # source addr should be the same for each
res = s.sendto(b"1234567890", peek_addr)
print(res)
print(s.recv(5, socket.MSG_PEEK))
print(s.recv(5, socket.MSG_PEEK))
s.close()
# Client
def instance1():
multitest.next()
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
s.send(b"abcdefgh")
s.send(b"klmnopqr")
print(s.recv(5, socket.MSG_PEEK))
print(s.recv(10))
s.close()
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